<?xml version='1.0'?>

<example>
    <OMOBJ xmlns="http://www.openmath.org/OpenMath" version="2.0" cdbase="http://www.openmath.org/cd">
        <OMA>
            <OMS cd="relation1" name="eq"/>
            <OMA>
                <OMS cd="arith1" name="plus"/>
                <OMA>
                    <OMS cd="arith1" name="plus"/>
                    <OMA>
                        <OMS cd="arith1" name="times"/>
                        <OMV name="a"/>
                        <OMA>
                            <OMS cd="arith1" name="power"/>
                            <OMV name="x"/>
                            <OMI>2</OMI>
                        </OMA>
                    </OMA>
                    <OMA>
                        <OMS cd="arith1" name="times"/>
                        <OMV name="b"/>
                        <OMV name="x"/>
                    </OMA>
                </OMA>
                <OMV name="c"/>
            </OMA>
            <OMI>0</OMI>
        </OMA>
    </OMOBJ>
</example>
